What should I do

So I am currently talking to this guy and he is honestly amazing and such a gentleman and he really makes me happy. He has everything im looking for in a man except there’s just one thing that’s kind of a deal breaker....I absolutely love children and my life will not be complete without having kids and being a mother whereas he hates kids and doesn’t want them although he said he might change his mind in the future. I don’t want to get super invested into this with him if we aren’t ever going to have kids in the future if things work out but in the mean time he’s really good for me and treats me so amazing. What should I do?